STD 11 - 17. Locomotion and movement — NEET STD 11 Science — Question

Statement I: The body of a simple organism like Hydra have tissue organisation.
Statement II: In this animal, a group of similar cells along with intercellular substances perform a specific function.

Which of the following statements regarding mutation are correct ?
(i) Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and phenotype of an organism.
(ii) Gene/Point mutation is responsible for Sickle- cell anaemia.
(iii) Chromosomal mutation is responsible for Down's syndrome.
(iv) In addition to recombination, mutation is another phenomenon that leads to variation in DNA.
(v) Chromosomal aberrations are commonly observed in cancer cells.
(vi) Deletions of base pairs of DNA, causes frame- shift mutations but not by insertion of base.

Diuresis is a specific pathological condition which leads to

The main function of fimbriae of Fallopian tube is

The function of vaccine is the production and storage of

Statement I: Between 26-35 segments typhlosole present.
Statement II: This increases the effective area of absorption in the intestine.